Fix

docs/usage.md

@@ -52,8 +52,6 @@ Global Flags:
       --vmodule moduleSpec               comma-separated list of pattern=N settings for file-filtered logging
 ```
 
-## How it works
-
 Here is the sequence diagram of the credential plugin.
 
 ```mermaid
@@ -62,6 +60,9 @@ sequenceDiagram
   User ->>+ kubectl: Run
   kubectl ->>+ kubelogin: Run the plugin
   kubelogin ->>+ Provider: Authentication request
+  Note over User, Provider: Browser interaction
+  Provider -->>- kubelogin: Authentication response
+  kubelogin ->>+ Provider: Token request
   Provider -->>- kubelogin: Token response
   kubelogin -->>- kubectl: Credential
   kubectl ->>+ kube-apiserver: Request with the credential